A Crossword Puzzle of the Language of Geometry

part of a line that is bounded by two distinct end points
2 angles that add up to 180 degrees
exactly similar parts facing each other or around an axis.
a figure with four equal straight sides and four right angles
A line with a start point but no end point
having a common vertex and a common side
a figure with three straight sides and three angles
a nine-sided figure
a transformation in which the figure is reflected across a line, creating a mirror image
a quadrilateral with only one pair of parallel sides
at an angle of 90° to a given line
each angular point of a polygon
2 angles that add up to 90 degrees
a transformation in which the figure is turned around a fixed center point
a figure with four straight sides and four right angles, especially one with unequal adjacent sides, in contrast to a square
A long thin mark made by a pen
the continuous line forming the boundary of a closed figure
a figure with at least three straight sides and angles
a seven-sided figure
the longest side of a right triangle
a transformation in which every point of the figure is moved in the same direction and for the same distance
the space between two intersecting lines or surfaces at or close to the point where they meet
a parallelogram with opposite equal acute angles, opposite equal obtuse angles, and four equal sides
a triangle that has three unequal sides
a transformation in which the figure is enlarged or decreased in size